O-METER

an oscilloscope (machine that shows waves) meter, also known a s a theta meter and trademarked as a physiogalvanometer. For more information, see SHSBC lecture 1, "E-Meter Talk and Demo." —SHSBC Binder 3 Approved Glossary

in 1955 a planned new and better E-meter than had ever been built before, under the trademarked name of physiogalvanometer, or O-meter. (PAB 52)